Improvement in steam-boilers for warming buildings



2 Sheets--Sheet l.

BLAKE.

Steam-Boilers for Warming Buildings.

Patented August 26, 1873.

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Patented August 26, 1873.

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UNTTED STATEs PATENT @Enron GEORGE w. BLAKE, OE BROOKLYN, NEw YORK.

IMPRQVEIVIENT IN STEAM-BOILERS FOR WARIVIING BUILDINGS.

Specication forming part of Letters Patent No. 142,196, dated August 26, 1873; application filed May 23, 1873.

ments in Steam-Boilers for Warming Buildings and other purposes, of which the following is a specification:

This invention consists in a novel sectional construction of steam-boiler for warmin g buildings and other purposes, having thebase-burning principle applied to it, in which not only the steam and water spaces are built up in sections mounted one upon the other, but also the magazine or fuel-reservoir, the whole being so arranged, applied, and secured that, while alarge heating-surface, good circulation, and perfect draft are obtained, provision is afforded for the independent expansion and contraction of the several sections, and for removal with facility of certain of\ the sections-includin g the lower section ofthe magazine-most exposed to destruction and wear.

In the accompanying drawing,lwhich forms' other, of a steam-boiler constructed in accordance with my invention.

Similar letters of reference indicate corresponding parts.

Arepresents the outer wall, of vertical cylindrical shape, and Bthe fire-pot, of tapering circular form, composed of, or circumscribed by,an annular lower water -section, G, and having any suitable grate, D, within it. Mounted upon this section C is a partly-annular water chamber or section, E, in communication by eyes or sockets b arranged at suitable distances apart, with the lower section C; also, with an upper water-section, F. Said annular water-chamber E is only of partly-annu] ar construction, to facilitate getting at the, fire, if necessary, through a front orside door, S, below which is a damper, d, to control the draft through the ash-pit, and which may be regu- G is another annular chamber, in similar connection, by sockets or sleeves b', with the annular chamber E below it. This annular chamber or section G, as also another upper section, H, with which it isin connection by sleeves c, is of atlattened, hollow, ringlike construction, the same forming, at their inner peripheries, socketed sections Of the magazine I, in continuation of a lower-magazine section I', which latter is surrounded by a water space, J, in communication, by sleeves or sockets c1, with the watersection G.

0f coursethe number of the sections E F Gr H may be varied, and7 mounted upon them, is an annular steam chamber or section, K, also constructed to form an upper-magazine section in socketed connection with the other sections of the central magazine or fuel-reservoir of a base-burning boiler; likewise in connection, by sockets or sleeves c2, with the water-chamber H.

The sockets c c1 c2 are all in line with each other,in orderto permit of bolts f being passed from above down through the sections K H G, and to support, by flan ges g, the lower-magazine section I J. This permits ofthe lowermagazine section, when worn, broken, or destroyed, being removed from beneath on takp ing out the grate, and being replaced by another section without disturbing the upper sections.

The several lower watersections, E F G, and nre-pot B, with its surrounding water-section C, may be connected by outside bolts h.

The sections G H, it should be observed, are constructed with iiues t through them, out of line'with each other, to circulate the heated gases passing therethrough,and around, or over and under, the several water-sections,

which are arranged at a suitable distance apart for the purpose, the gaseous products of' combustion ultimately escaping in rear of the steam drum or section K. Mounted over all is a cover, L, through which the steam pipe or pipes la pass, and which is provided with a lid, M, for supplying the magazine with fuel; or,

instead of, or in addition to, such lid, the

steam-drum, or one of the upper water-sections, may have its continuity broken so as to be only partly annular, as in the case of the section E, to provide for feeding the fuel to the magazine through the side instead of the top of the boiler.

The several sections are all made of castiron, and easily dropped or slipped to their places.

What is here claimed, and desired to be se cured by Letters Patent, is-

l. The lower section l of the magazine, ha

ing an attached surrounding water chamber, J, both made separate and distinct from the upper portion of the boiler, and said Waterchaniber being provided With one or more openings to establish communication with the Water-space of the boiler, substantially as specited.

2. The sectionally-constructed magazine II and Water-chamber J, in combination with the communicating annular steam and Water sections E F G H K and the bolts F, essentially as herein shown and described.

3. The annular Water sections G H, constructed to form central fuel reservoir or magazine sections, and provided with water sockets or sleeves connecting them with each other, and with Watersections above and below them, substantially as specified.

GEO. W. BLAKE.

Witnesses FRED. HAYNEs, MICHAEL RYAN. 

